WO2000007196A2 - Cable electrique ou de signalisation pourvu de gaine de cable composite, de borne de blindage et de passe-cable de modeles perfectionnes - Google Patents
Cable electrique ou de signalisation pourvu de gaine de cable composite, de borne de blindage et de passe-cable de modeles perfectionnes Download PDFInfo
- Publication number
- WO2000007196A2 WO2000007196A2 PCT/US1999/017393 US9917393W WO0007196A2 WO 2000007196 A2 WO2000007196 A2 WO 2000007196A2 US 9917393 W US9917393 W US 9917393W WO 0007196 A2 WO0007196 A2 WO 0007196A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cable
- layer
- sleeve
- grommet
- over
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
Definitions
- the present invention relates to cables for carrying electrical signals, grommets, terminals, and jacks.
- the present invention relates to a fatigue resistant shielded cable, grommet, terminal and connector assembly.
- Cables for carrying an electrical signal commonly include central conductors and overlying protective layers.
- Some protective layers comprise insulation and jacket materials that are soft and flexible. As a result of this softness and flexibility, a significant portion of the mechanical load on such cables is carried by the conductors, thereby decreasing conductor service life.
- a cable protective layer covering that is flexible and yet is capable of carrying a mechanical load is a woven fabric covering of polymer such as Nylon. Such a covering allows conductor elements to shift, and thereby avoids placing a load on them.
- a woven cover has disadvantages associated with it. For instance, it does not provide a barrier to moisture. If the primary insulation on the individual conductors is compromised, a fluid spill could result in a short. In addition, a woven cover is not easily cleaned of stains. Further, a woven cover may be difficult to use with cable cutting tools, as they may easily penetrate the woven fabric layer and pass into the conductors below or into the insulation layers around the individual conductors.
- a proposed solution has been to combine a woven fabric covering with a liquid tight polymer protective layer.
- the polymer layer may restrict movement of conductor elements, thereby potentially increasing the loads carried by the conductors and decreasing cable flexibility.
- the woven fabric covering remains subject to staining. If the polymer layer is placed over the woven fabric, the polymer may restrict movement of the braid and thereby reduce flexibility. Further, regardless of which layer covers which, the presence of two layers may result in an unacceptable cable diameter.
- strain relief means may be used in connecting the cable to a device. Most often, cables are connected to a device by crimping the cable with a crimper.
- a crimped connection tends to center the load on the conductors.
- a crimp connection typically requires a flattening of an otherwise round cable, and thereby does not distribute the load evenly about the entire circumference of the cable. The load is instead focused on a small portion of the cable, which can lead to premature failure.
- Cable EMI-RFI shielding may also be conductively attached to a device housing. Often, as in the case of an electrically connected handset, the interior of the device housing will have an EMI-RFI protective coating. In a conventional crimp connection, the shield makes contact with the interior protective coating through the shield being in contact with the conductive crimp connector, which may occur over an undesirably small area.
- Other prior art connection methods may include soldering a portion of the cable shielding to the device shielding. Such soldered connections, however, result only in point contact. While point contact may be adequate for most electrical contacts, it may be inadequate for EMI-RFI shielding and may result in EMI- RFI leakage.
- EMI-RFI cable shielding to a device housing in an ineffective manner.
- the distance between the entry point to the housing and the connection point to the shielding can be an entry portal for EMI-RFI interference into the housing.
- Another set of problems relates generally to applications requiring plural shielded cables to be connected to a single commercially available connector.
- two cables may be connected to a single multiple pin connector.
- Past practice has included passing both cables through a single hole in the connector back shell. This practice, however, is troublesome for a variety of reasons. As the back shell hole is not intended to accommodate more than a single cable, the multiple cables may be cramped and thereby subject to excessive wear. Also, the separate individual cables each bring separate ground shields into the connector, which must then each be connected to the back shell. Further, passing two generally round cables through a single hole leaves gaps that may serve as EMI-RFI interference portals into the connector back shell or housing.
- the present invention comprises a shielded cable one end of which is intended to be attached to a movable device such as a hand set.
- the other end of the cable is intended to connect via a standard jack, such as serial jack, to a stationary source.
- a standard jack such as serial jack
- the majority of the cable is stored on a retractable cord reel.
- a shielded grommet adapted for connection to a terminal assembly are provided at the moveable end of the cable to provide effective EMI-RFI shielding and improved durability.
- a multi-cable, shielded jack is provided at the stationary end of the cable.
- the cable of the invention generally comprises at least one conductor, an inner tube jacket over the conductor, a braided fabric layer over the inner jacket; and an outer elastomeric jacket extruded over and through the fabric layer to bond with the inner jacket.
- a shielding layer may be located between the conductor(s) and the inner tube jacket.
- the inner tube jacket over the conductor is thin and does not adhere to the conductors, thereby allowing conductor movement and preventing mechanical load transfer from the jacket to the conductors.
- the tube jacket is covered with a thin fabric braid to carry loads.
- the preferred fabric braid layer comprises braided polyester, and provides between 30% and 75% coverage, with 40% to 50% being preferred.
- the preferred outer elastomeric layer is a pressure extruded jacket that passes through the braided fabric cover and bonds to the inner jacket, thereby forming a laminated, fabric reinforced, moisture resistant jacket.
- the combination of the inner and outer jackets bonded together through the fabric braid layer there between thus comprises a thin, fabric reinforced polymer jacket that is capable of carrying loads, that allows the inner conductors to shift or move slightly in response to loading, and that provides an effective barrier to moisture.
- the overall combined thickness of the three layers is substantially the same as a single prior art cover. Because the inner conductor(s), which preferably comprises plural insulated conductors, are shiftable as load is applied to the cover layers, the conductors avoid carrying load. This greatly reduces the frequency of fatigue related cable failures.
- the presence of the polymer jacket below the woven fabric layer makes the cable of the present invention easier to use with cutting tools reducing the risk of cutting into the conductors.
- the present invention further comprises a jack for receiving a plurality of separate cables, as may be required when connecting a source to two or more devices, such a hand set and a kill switch.
- the connector comprises a back shell having plural openings for receiving plural cables.
- Each cable carries a braided metal shielding layer which is connected to the back shell.
- the braided cable shield is continuous, extending from one cable to the other within the back shell of the jack.
- An individual opening for each cable allows for a more uniform fit around the circumference of each cable which provides improved EMI-RFI shielding.
- the grommet assembly of the invention connects the cable to a movable remote device, such as a handset.
- the grommet comprises an elastomeric grommet molded around a conducting sleeve, with the inner conducting sleeve exposed at an outer or distal end.
- the sleeve carries a radially extending flange for better mechanical connection with the elastomeric grommet.
- the grommet is molded over and fused to the cable outer jacket proximal to the sleeve, thereby providing for transfer of load between the cable jacket and grommet. This reduces the load placed on the conductors, and significantly reduces fatigue related cable failure at the point of cable connection to the device, which may otherwise be subject to high rates of failure.
- the cable of the grommet assembly of the invention is shielded.
- One or more foil or braided metal shield layers are located between the inner conductors and outer cable jacket.
- a length of outer jacket is removed from the distal end of the cable exposing the shield layer(s).
- a length of the shield layer is pulled back and folded over the cable outer jacket.
- the conducting sleeve surrounds the folded over length of shield layer.
- the elastomeric grommet is molded around the sleeve, with a first end of the sleeve extending distally from the grommet. The exposed distal end of the sleeve provides for conducting linkage between device shielding and the cable shielding layer.
- a metallic braid supplemental shielding layer surrounds the folded over length of cable shield layer within the sleeve.
- the grommet of the invention is adapted to be received in a terminal carried by the movable device for receiving the cable and grommet.
- the terminal comprises a clamp that is electrically connected to or is a part of the housing shielding for the remote device.
- the clamp has a first surface that clamps onto the exposed distal end the conducting sleeve.
- the clamp has a second surface that engages a recessed annular ring in the elastomeric grommet, which provides mechanical attachment between the grommet and device without placing significant load on the cable inner conductors.
- Fig. 1 is a plan view of a preferred retractable cable assembly of the invention.
- Fig. 2 is a cutaway view of an embodiment of the cable of the invention.
- Fig. 3 is a transverse cross sectional view of the cable of the invention taken along line 3-3 of Fig. 2.
- Fig. 4 is a longitudinal cross sectional view of an embodiment of the grommet assembly of the invention.
- Fig. 5A to Fig. 5G are illustrations of the method steps for making the grommet assembly of the invention.
- Fig. 6 is a cross sectional view of the grommet and cable attachment assembly of the invention.
- Fig. 7 is a longitudinal cross sectional view of a preferred multi-cable connector of the invention.
- Fig. 1 is a plan view of the signal cable assembly 300 of the invention for connecting a source (not shown) to a remote, movable device such as a handheld controller (shown in dashed line).
- the signal cable assembly comprises a jack 200 for connection to the source, plural cables 206,207 extending from the jack, a cord reel 302, retractable cord 1, grommet 50, and terminal 150.
- Retractable cord reel 302 is generally known in the art and is described, for example, in U.S. Patent No. 5,094,396 to Burke, herein incorporated by reference.
- Cord reel 302 has a cable storage chamber, with cable 1 retractably stored therein.
- Cable 206 is fixed to reel 302 and is electrically connected to cable 1 as more fully described in the referenced Burke patent.
- Cable 207 may be connected to another device (not shown) such as a kill switch.
- Figs. 2 and 3 illustrate the cable of the invention. For clarity of illustration, the thickness of each layer has been exaggerated in Fig. 3.
- Cable 1 generally comprises a plurality of individual conductors 2, two conducting shield layers 4 surrounding conductors 2, inner jacket 6 over shield layers 4, fabric braid layer 8 over inner jacket 6, and outer pressure extruded jacket layer 10 over fabric braid layer 8.
- Conductors 2 each have individual insulation layers insulating them from each other and from conducting shield layers 4. Two shield layers are shown, but those skilled in the art will appreciate that one or more than two layers may be used.
- Inner tube jacket 6 is impermeable to moisture, and preferably comprises a thin, flexible elastomer layer. It does not adhere to the shielding layers 4, thereby allowing for movement of shield layers 4 and conductors 2.
- Fabric braid layer 8 will bear the majority of mechanical load placed on cable 1.
- Pressure extruded jacket layer 10 flows through fabric braid layer 8 and adheres to inner tube jacket 6, thereby laminating layers 6, 8, and 10 together.
- a single, thin, fabric reinforced covering is thus effectively formed.
- the fabric reinforced cover allows for movement of the inner conductors and shield, thereby freeing them from carrying mechanical load and also retaining cable flexibility.
- the laminated cable jacket provides significantly greater strength than an elastomer cover of the same thickness because of the presence of the fabric layer.
- Fabric braid layer 8 may be comprised of any suitable fibrous material, including nylon, polyester, or Kevlar, with polyester preferred.
- nylon requires an additional drying step as nylon absorbs water; if it is not dried prior to placement on the cable absorbed water will evaporate upon application of the extruded outer layer with resulting bubbling in the layer. While Kevlar does not absorb water, it is typically more expensive than polyester.
- strength of the braid likewise increases. Void space is also advantageous, however, for the outer pressure extruded jacket 10 to effectively flow through braid 8 and adhere to the inner jacket 4. It has been found that preferred braid layer 8 coverage of between about 30% to 75% is effective, with 40% to 50% preferred.
- Fig. 4 is a cross sectional view of the grommet 50.
- Cable 1 is comprised of individual conductors 2 surrounded by a conducting shield layer 4, preferably comprising a metal braid or foil, and outer jacket 56.
- Outer jacket 56 may comprise a single layer, or may preferably comprise a plurality of layers, including an inner jacket, a fabric braid layer, and an outer extruded jacket (elements 6, 8, and 10, respectively, as shown in Figs. 2 and 3) laminated together as described above to form jacket 56.
- shield layer 4 may comprise a single layer as shown in Fig. 4, or may comprise multiple layers as shown in Figs. 2 and 3. Referring again to Fig.
- cable 1 has a distal end 58, which will be inserted in a device housing for electrical connection to the device.
- Outer jacket 56 is stripped away from a portion of the distal end 58, exposing shield layer 4.
- Exposed shield layer 4 is then pulled back and folded back over the end of outer jacket 56.
- An insulating tube 60 is slid over the exposed conductors at the distal end of the cable.
- Tube 60 is optional. Depending on the application, one may use a relatively long length of tube (6 cm), a short length (2.5 cm) or no tube 60.
- a supplemental shielding layer 62 preferably copper metal braid, surrounds the folded over portion of shield layer 4 and extends over a portion of tube 60.
- a conducting sleeve 64 preferably comprised of metal, surrounds copper braid 62. Copper braid shield 62 insures good conductive contact between sleeve 64 and shield layer 4, while also preventing a binding mechanical linkage between the two. As sleeve 64, braid 62, and shield 4 are not mechanically attached to one another, shield layer 4 has sufficient freedom of movement so as to avoid carrying tensile load.
- grommet 68 is molded over sleeve 64 and cable 1.
- Grommet 68 has a distal end 70, which terminates along sleeve 64 leaving exposed the distal end of the sleeve.
- Sleeve 64 carries a radially projecting annular flange 72 for good mechanical connection to grommet 68. Accordingly, grommet 68 is mechanically anchored to sleeve 64.
- mechanical loads applied to grommet 68 will not be transferred to shield layer 4. This significantly reduces fatigue related cable failure in this traditionally high failure area.
- Grommet 68 has a proximal end 74, as shown in Fig. 5G, which extends proximally beyond sleeve 64 and is molded to cable outer jacket 56.
- Grommet 68 tapers towards end 74 so as to provide a flexible support for cable 1 in this high flex and high fatigue region adjacent the device.
- grommet 68 is fused to the outer jacket 56. Load is thereby transferred between cable outer jacket 56 and grommet 68.
- the conductors and shield layer 4 do not carry load. Fusing of grommet 68 to outer jacket 56 around the entire circumference also provides for effective distribution of stress.
- the method for making the grommet assembly generally comprises the steps illustrated in Figs. 5A-5G.
- outer jacket 56 of the cable is stripped away from cable end portion 102 exposing conducting shield layer 4.
- Outer jacket 56 may comprise a single layer, or may comprise a plurality of layers, including, for example, an inner jacket, a fabric braid layer, and an outer jacket (elements 6, 8, 10, respectively, of Fig. 2 and 3).
- Fig. 5B illustrates the next step of pulling back shield layer 4 from cable end portion 102, thereby exposing cable inner conductors 2.
- pulled back shield layer 4 is folded over on top of outer jacket 56, and an optional length of supplemental insulator layer 60 is installed over exposed conductors 2.
- Preferred supplemental insulator layer 60 is shrink elastomer.
- Fig. 5D illustrates installation of a length of second shield layer 62 over folded back shield layer 4.
- Shield layer 62 is preferably copper metal braid. Copper braid 62 may also extend over a portion of installed shrink 60. Desirably, the distal end 63 of the layer 62 is twisted to form a pigtail 63.
- Conducting sleeve 64 is then slid over copper braid conducting layer 62 as illustrated in Fig. 5E, until it completely covers copper braid 62, as shown in Fig. 5F.
- Sleeve 64 is preferably comprised of metal, and is held over copper braid 62 by a frictional fit that allows for some movement of shield layer 4 and inner conductors 2 relative to sleeve 64, but that insures good conductive contact.
- a short length of shrink tube 65 may be installed over the proximal end of sleeve 64, which prevents elastomeric material from penetrating under sleeve 64 in the grommet molding step.
- Fig. 5G illustrates the final cable and grommet assembly. Elastomer grommet
- Sleeve 64 is molded over sleeve 64 and cable outer jacket 56.
- Sleeve 64 has a distal end 66 that extends distally beyond grommet end 70 and is thereby exposed and useful as a contact point for providing a continuous shield with the cable underlying shield layer 4.
- Sleeve 64 has annular flange 72 for enhanced mechanical linkage to grommet 68.
- the proximal end 74 of the grommet extends proximally well beyond sleeve 64 so that a substantial bond is made with cable outer jacket 56.
- grommet surface 76 is fused to outer jacket surface 56.
- the grommet assembly of the invention is adapted to be received in a terminal carried by the device housing.
- Fig. 6 is a cross section of a terminal 150.
- Terminal assembly 150 generally comprises movable contact means, which are preferably two cooperating clamp halves 151.
- Each clamp half 151 has a first surface 152 for contacting the exposed sleeve end 66 of the grommet assembly, and a second surface 158 for mechanically engaging a recessed annular ring 160 in the grommet.
- Clamp halves 151 are brought together with any conventional means, including, for example, screws.
- As clamp first surface 152 is in electrical contact with shielding carried by housing 156, such as a conductive coating. Thereby a continuous shield is thereby formed between grommet sleeve 64 and the shield layer for device 156.
- the large area of the outside of clamp halves 151 in contact with a conductive coating on the interior walls of housing 156 insures good contact.
- clamp half first surfaces 152 are substantially semi-circular, they make contact with sleeve end 66 over its entire circumference, providing for effective EMI-RFI shielding. Further, as this contact occurs close to the point of introduction of the cable to the device housing, opportunity for EMI-RFI interference to seep into the device housing is minimized.
- Preferred clamp halves 151 further comprise second surfaces 158 for mechanically engaging grommet recessed annular ring 160. Because grommet 68 is comprised of a flexible elastomer, the mechanical engagement between semi-circular second surfaces 158 and recessed ring 160 around substantially 360° of the ring is firm and provides high strain relief. Rings 78 provide resistance to fluid penetration.
- Fig. 7 is a cross sectional view of a preferred multi-cable connector assembly 200 of the invention.
- Connector 202 has two passages 204 for receiving two separate cables 206 and 207. Cables 206 and 207 each have a plurality of individual conductors 208, which carry an outer insulation layer. Conductors 208 are conductively connected to connector 202 through connector block 212 (shown in partial cross section in Fig. 7). Conductor insulation is stripped away from the end of conductor 208, leaving inner conductor 214. Inner conductor 214 then conductively contacts pin 216.
- Cables 206 and 207 comprise elastomer jacket 217 surrounding conductors 208.
- Elastomer jacket 217 is overlaid with metallic braid sheath layer 218 for shielding of cable 206 and 207.
- Shield 218 is preferably continuous between cables 206 and 207 with a linkage at 220.
- Shield 218 is also in contact with connector back shell 222 by contact with back shell 222 as it passes through passages 204.
- Continuity between shield 218 on cables 206 and 207 advantageously provides for common shielding between cables 206 and 207.
- Cables 206 and 207 further have outermost elastomeric cover layer 224 overlaying metal braid layer 218.
- Elastomer outer jacket 224 covers cables 206 and 207 only on the portions extending outside of back shell 222.
- Outer jacket 224 provides a moisture tight barrier, and also provides an added resiliency to reduce conductor 208 bending fatigue.
- Preferred outer jacket 224 comprises shrink tubing. Additional elastomeric cover layers may be provided.
- elastomer jacket 217 surrounding conductors 208 and underneath shield 218 preferably comprises two elastomer layers. Two layers enhance the compressibility of the jacket, so that good electrical contact between the overlying shield 218 and back shell 222 can be made as the shell compresses the cable through passages 204.
- Elastomer jacket 217 has been illustrated for convenience as comprising a single layer in Fig. 7, but is preferably two elastomer layers.
- Preferred elastomer jackets 217 comprise shrink tubing. Although good electrical contact between the back shell 222 and shield 218 is made by compression, the shield may be soldered to back shell 222 for positive conductive connection.
- Connector housing 222 is also preferably wrapped with elastomeric cover layer 226, preferably comprising shrink tubing. Use of such shrink tubing may leave a gap between layer 226 and cables 206 and 207, and between cables 206 and 207 themselves. This gap is preferably filled with epoxy 228. Epoxy layer 228 provides for moisture and electrical insulation, and further provides added bending support for cables 206 and 207 at the otherwise high fatigue location where cables 206 and 207 enter connector housing 222. The advantages of the disclosed invention are thus attained in an economical, practical, and facile manner. While preferred embodiments and example configurations have been shown and described, it is to be understood that various further modifications and additional configurations will be apparent to those skilled in the art. It is intended that the specific embodiments and configurations herein disclosed are illustrative of the preferred and best modes for practicing the invention, and should not be interpreted as limitations on the scope of the invention as defined by the appended claims.
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- Insulated Conductors (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU52485/99A AU5248599A (en) | 1998-07-31 | 1999-07-30 | Electrical/signal cable having improved composite cable jacket, shield terminal and grommet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9493698P | 1998-07-31 | 1998-07-31 | |
US60/094,936 | 1998-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000007196A2 true WO2000007196A2 (fr) | 2000-02-10 |
WO2000007196A3 WO2000007196A3 (fr) | 2007-12-06 |
Family
ID=22248035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/017393 WO2000007196A2 (fr) | 1998-07-31 | 1999-07-30 | Cable electrique ou de signalisation pourvu de gaine de cable composite, de borne de blindage et de passe-cable de modeles perfectionnes |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU5248599A (fr) |
WO (1) | WO2000007196A2 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002079841A1 (fr) * | 2001-03-29 | 2002-10-10 | Laird Technologies, Inc. | Serre-cable elastomere conducteur de protection |
US6881903B2 (en) * | 2001-04-20 | 2005-04-19 | Siemens Aktiengesellschaft | Multi conductor arrangement for transferring energy and/or data |
WO2016094008A1 (fr) * | 2014-12-10 | 2016-06-16 | Telefonix, Inc. | Enrouleur de câble doté d'une gaine polymère conductrice |
CN108399969A (zh) * | 2018-04-28 | 2018-08-14 | 福建通宇电缆有限公司 | 一种安全电缆 |
CN113991341A (zh) * | 2021-10-25 | 2022-01-28 | 东莞市安阔欣精密电子有限公司 | 高频性能较优的连接器及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3349163A (en) * | 1964-04-16 | 1967-10-24 | Cit Alcatel | Transition connector of a submarine cable |
US3598895A (en) * | 1970-04-06 | 1971-08-10 | Teletype Corp | Connector for double-shielded cable |
US4675475A (en) * | 1984-05-02 | 1987-06-23 | Ericsson, Inc. | Electrical cable with reinforcement |
US4773879A (en) * | 1987-10-13 | 1988-09-27 | Amp Incorporated | Coaxial drop cable |
US4816641A (en) * | 1987-07-20 | 1989-03-28 | Nkk Corporation | Automatic arc-welding method |
-
1999
- 1999-07-30 WO PCT/US1999/017393 patent/WO2000007196A2/fr active Application Filing
- 1999-07-30 AU AU52485/99A patent/AU5248599A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3349163A (en) * | 1964-04-16 | 1967-10-24 | Cit Alcatel | Transition connector of a submarine cable |
US3598895A (en) * | 1970-04-06 | 1971-08-10 | Teletype Corp | Connector for double-shielded cable |
US4675475A (en) * | 1984-05-02 | 1987-06-23 | Ericsson, Inc. | Electrical cable with reinforcement |
US4816641A (en) * | 1987-07-20 | 1989-03-28 | Nkk Corporation | Automatic arc-welding method |
US4773879A (en) * | 1987-10-13 | 1988-09-27 | Amp Incorporated | Coaxial drop cable |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002079841A1 (fr) * | 2001-03-29 | 2002-10-10 | Laird Technologies, Inc. | Serre-cable elastomere conducteur de protection |
US6881903B2 (en) * | 2001-04-20 | 2005-04-19 | Siemens Aktiengesellschaft | Multi conductor arrangement for transferring energy and/or data |
WO2016094008A1 (fr) * | 2014-12-10 | 2016-06-16 | Telefonix, Inc. | Enrouleur de câble doté d'une gaine polymère conductrice |
US9960587B2 (en) | 2014-12-10 | 2018-05-01 | Konnectronix, Inc. | Cord reel including a conductive polymeric sheath with a conductive EMI drain |
CN108399969A (zh) * | 2018-04-28 | 2018-08-14 | 福建通宇电缆有限公司 | 一种安全电缆 |
CN108399969B (zh) * | 2018-04-28 | 2023-09-22 | 福建通宇电缆有限公司 | 一种安全电缆 |
CN113991341A (zh) * | 2021-10-25 | 2022-01-28 | 东莞市安阔欣精密电子有限公司 | 高频性能较优的连接器及其制备方法 |
CN113991341B (zh) * | 2021-10-25 | 2022-11-11 | 东莞市安阔欣精密电子有限公司 | 高频性能较优的连接器及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2000007196A3 (fr) | 2007-12-06 |
AU5248599A (en) | 2000-02-21 |
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